Belt-tightener



(No Model.)

A. F. SNYDER.

BELT TIGHTENBR. No. 587,877. Patented Aug. 10,1897.

b Kg. 1 h j z UNITED STATES PATENT OFFICE.

ANDREW F. SNYDER, OF CHICAGO, ILLINOIS.

BELT-TIGHTENER.

SPECIFICATION forming part of Letters Patent Ila 587,877, dated August 10,1897. Application filed December 29, 1896. Serial No. 617,308. (No model.)

To all whom, it may concern.-

Be it known that I, ANDREW F. SNYDER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Belt-Tighteners, of which the following is a specification.

This invention relates to certain new and useful improvements in belt-tighteners, and has for its object to provide a simple, cheap, strong, durable, and quickly-adjusted belt clamp and tightener of that class designed to allow of the tightening of the belt without taking it from'the pulleys.

The machine is made of iron or steel.

The invention is clearly illustrated in the accompanying drawings, which, with the letters of reference marked thereon, form a part of this specification, and in which Figure 1 is a front view of my improved belt clamp and tightener shown applied to a belt. Fig. 2 is an end view' of Fig. 1.. 3 is a side view of cross-bar D. Fig. 4 is a face view of cross-barD. Fig. 5 is aside view of lug C, showing ends of cross-bars d (1 shown in Fig. 3.

Similar letters refer to similar parts in the several views.

In Fig. 1, A A is the belt.

B B are the bolts with squares b b in the center.

b b and b b are right and left handed threads. Corresponding threads are tapped in the projection of lugs C 0 (shown in Fig.

the belt will allow.

Fig..

purpose set forth.

hold the cross-bars D D in position before putting on lugs C C.

d in Fig. 4 are bolt-holes for bolts cl d.

ein Figs. 2, 3, and 4 are teeth. There are tworows, each row being alternate, as shown in Fig. 4., and are for the purpose of gripping the belt to prevent slipping. Y

Fig. 5 shows a combination of lug C and center-bearing ends 01 d of cross-bar D, as shown in Fig. 3. The taper opening of lug C is for a double purposefirst, of admitting a belt of any required thickness; second, of forcing cross-bars D D as close together as This is accomplished by tightening the bolts B B, and the heavier the strain on the bolts B B and lugs C C the more firm will be the grip of teeth 6 of cross-bars D D on belt A. e c is face of taper opening of lug C and is polished. Center-bearing ends 61 d of cross-bars D D are also polished.

In practice the cross-bars D D are placed on belt A a suitable distance apart, as shown in Fig. 1, bolts 61 cl merely holding them in position. The lugs C C are then placed upon center-bearing ends 01 d of cross-bars D D, as shown in Fig. 5, when by.- applying a wrench to squares b b of bolts B Bit causes taper opening of lugs C C to slide on centerbearing ends 01 d of cross-bars D D, causing the teeth 6. to grip the belt firm and prevent the cross-bars D D from slipping on the belt under all possible circumstances.

I-Iaving fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-- The combination in a belt clamp and tightener, of the lugs C, C, with the taper opening and polished face 0, o, with center-bearing polished ends 0?, d of cross-bars D, D, substantially as shown and described and for the ANDREW F. SNYDER. Witnesses:

H. P. HICKEY, JAMES SPENCE. 

